1. Objective: You will be able to generate the four steps of preserving a crime scene and identify a wide variety of services in crime laboratories. Warmup - The diversity and quality of crime lab services rendered varies significantly within the United States. what are the reasons for such a wide variation in services offered by crime laboratories in different communities?

2. Check your notes - Were all the services presented? Did each group cover the necessary information? Crime Lab Services Notes.doc Pay close attention to the highlighted information

3. Crime Lab Services - Come on up.... randomly selected groups present Listen to each group's presentation. Focus on the following: Name of service overall function types of physical evidence analyzed types of equipment used types of techniques used Write this into your notes.... then put a star next to the field(s) that you are interested in (liked, thought weren't completely horrible.... might like to learn more about)

4. Police investigating an apparent suicide collect the following items at the scene: a note purportedly written by the victim, a revolver bearing very faint fingerpints, and traces of skin and blood under the victim's fingernails. Critical Thinking (discuss) --> What unit(s) might be involved? CSI, document exam, firearms, latent fingerprints, biology

5. Crime Scene Preservation Working in groups of four, students will complete a Jigsaw activity: Choose a group of four. Each person will choose a number: 1, 2, 3, or 4 You are responsible for what the rest of your group will learning

6. Break into designated areas of the classroom #1 's meet at the desks closest to the shower station #2's meet at the lab stations near computers 8, 9, & 10 #3's meet at the lab station near computers 5-7 #4's meet at the lab stations near computer 1 & 4

7. O ne group member will read TOPIC 1 The next will explore TOPIC 2 The other group member will read TOPIC 3 The last group member will explore TOPIC 4 Create a thinking map to record the most important information about your topic. 1. What title would you use to describe your topic? 2. What are the responsibilities of your topic? 3. Who is involved in your topic? 4. Other information related to your topic? You have approximately 20-25 minutes to read and become an expert on your topic.

9. Can you name the 4 steps to crime scene preservation? What is their order? (which is 1st, 2nd, 3rd, 4th) You have approximately 15-20 minutes to share this information with your group members. Remember, you are responsible for the information your group obtains.

10. Crime Scene Preservation Order Grade:«grade» Subject: «subject» Date: «date»

11. Warmup - Senteo question Crime scene preservation consists of 4 major categories. What is the correct order of the following steps? a. Chain of custody c. 1st responding officer b. Documentation d. Searching Objective: You will be able to determine essential information needed on a rough sketch

12. 1 A B C D

13. 2 A B C D

14. 3 A B C D

15. 4 A B C D

16. Keep your senteos for your crime lab unit quiz next!

17. Arrival at the scene Documentation Searching Chain of Custody Crime Scene Preservation 1st responding officer 4 ways to record a crime scene - who handles the evidence - maintaining authenticity and integrity - who determines it - types of search methods - how to collect https://www.youtube.com/watch?v=CFrqhYUEulI

18. Arrival at the crime scene Responding officer Who's responsible? For what? Times Date Notes Securing the Scene Dispatched Responded Arrived Left Weather Lighting Odor Victim/Suspect Set up crime scene tape Month/day/year

19. Documentation 4 Types of methods Written Notes Photography Sketching Videography

20. Searching the Crime Scene Depends on _____ and _____ of crime and _number of individuals participating Who's chooses? Lead Detective size type

21. Searching the Crime Scene Types of Search Methods Spiral Grid Quadrant Strip or Line Circular pattern towards a fixed point in center of room Segments for individual searching - more than 1 person involved One direction Horizontal and Vertical

22. Searching the Crime Scene Always wear gloves and protective clothing and always collect a known sample (_exemplar_)

23. Chain of Custody Form Requires... Proper Packaging Proper Labeling Examples include: Blood or semen - air dry and place in paper bag. Charred debris - new paint can or tightly sealed jar

24. Chain of Custody Begins at the initial collection of evidence Authenticity and Integrity Accountability http://www.youtube.com/watch?v=yFXzG6qfxWc 1 form per piece of evidence

25. Exit Ticket J on Benet Ramsey Case what do you think were some of the problems made during the beginning of the crime scene process?

27. Objective: You will be able to create a chain of custody Warmup - A.search for evidence B.secure the scene C.make a rough sketch of the scene D.photograph the scene Which of these best describes what the first officer should do after arriving at a crime scene and preserving life?

28. Attachments Crime Lab Services Notes.doc crime lab quiz.notebook